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1. Local ethernet segments are configured in zebra by attaching a local-es-id and sys-mac to a access interface - >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ! interface hostbond1 evpn mh es-id 1 evpn mh es-sys-mac 00:00:00:00:01:11 ! >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> This info is then sent to BGP and used for the generation of EAD-per-ES routes. 2. Access VLANs associated with an (ES) access port are translated into ES-EVI objects and sent to BGP. This is used by BGP for the generation of EAD-EVI routes. 3. Remote ESs are imported by BGP and sent to zebra. A list of VTEPs is maintained per-remote ES in zebra. This list is used for the creation of the L2-NHG that is used for forwarding traffic. 4. MAC entries with a non-zero ESI destination use the L2-NHG associated with the ESI for forwarding traffic over the VxLAN overlay. Please see zebra_evpn_mh.h for the datastruct organization details. Signed-off-by: Anuradha Karuppiah <anuradhak@cumulusnetworks.com>
118 lines
3.7 KiB
C
118 lines
3.7 KiB
C
/*
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* Zebra Layer-2 interface Data structures and definitions
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* Copyright (C) 2016, 2017 Cumulus Networks, Inc.
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*
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* This file is part of FRR.
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*
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* FRR is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2, or (at your option) any
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* later version.
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*
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* FRR is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with FRR; see the file COPYING. If not, write to the Free
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* Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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* 02111-1307, USA.
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*/
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#ifndef _ZEBRA_L2_H
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#define _ZEBRA_L2_H
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#include <zebra.h>
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#include "if.h"
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#include "vlan.h"
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#include "vxlan.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* zebra L2 interface information - bridge slave (linkage to bridge) */
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struct zebra_l2info_brslave {
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ifindex_t bridge_ifindex; /* Bridge Master */
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struct interface *br_if; /* Pointer to master */
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};
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/* zebra L2 interface information - bridge interface */
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struct zebra_l2info_bridge {
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uint8_t vlan_aware; /* VLAN-aware bridge? */
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};
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/* zebra L2 interface information - VLAN interface */
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struct zebra_l2info_vlan {
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vlanid_t vid; /* VLAN id */
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};
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/* zebra L2 interface information - VXLAN interface */
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struct zebra_l2info_vxlan {
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vni_t vni; /* VNI */
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struct in_addr vtep_ip; /* Local tunnel IP */
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vlanid_t access_vlan; /* Access VLAN - for VLAN-aware bridge. */
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struct in_addr mcast_grp;
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ifindex_t ifindex_link; /* Interface index of interface
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* linked with VXLAN
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*/
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ns_id_t link_nsid;
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};
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struct zebra_l2info_bondslave {
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ifindex_t bond_ifindex; /* Bridge Master */
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struct interface *bond_if; /* Pointer to master */
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};
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union zebra_l2if_info {
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struct zebra_l2info_bridge br;
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struct zebra_l2info_vlan vl;
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struct zebra_l2info_vxlan vxl;
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};
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/* NOTE: These macros are to be invoked only in the "correct" context.
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* IOW, the macro VNI_FROM_ZEBRA_IF() will assume the interface is
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* of type ZEBRA_IF_VXLAN.
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*/
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#define VNI_FROM_ZEBRA_IF(zif) (zif)->l2info.vxl.vni
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#define VLAN_ID_FROM_ZEBRA_IF(zif) (zif)->l2info.vl.vid
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#define IS_ZEBRA_IF_BRIDGE_VLAN_AWARE(zif) ((zif)->l2info.br.vlan_aware == 1)
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extern void zebra_l2_map_slave_to_bridge(struct zebra_l2info_brslave *br_slave);
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extern void
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zebra_l2_unmap_slave_from_bridge(struct zebra_l2info_brslave *br_slave);
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extern void
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zebra_l2_map_slave_to_bond(struct zebra_l2info_bondslave *bond_slave, vrf_id_t);
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extern void
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zebra_l2_unmap_slave_from_bond(struct zebra_l2info_bondslave *bond_slave);
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extern void zebra_l2_bridge_add_update(struct interface *ifp,
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struct zebra_l2info_bridge *bridge_info,
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int add);
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extern void zebra_l2_bridge_del(struct interface *ifp);
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extern void zebra_l2_vlanif_update(struct interface *ifp,
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struct zebra_l2info_vlan *vlan_info);
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extern void zebra_l2_vxlanif_add_update(struct interface *ifp,
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struct zebra_l2info_vxlan *vxlan_info,
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int add);
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extern void zebra_l2_vxlanif_update_access_vlan(struct interface *ifp,
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vlanid_t access_vlan);
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extern void zebra_l2_vxlanif_del(struct interface *ifp);
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extern void zebra_l2if_update_bridge_slave(struct interface *ifp,
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ifindex_t bridge_ifindex);
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extern void zebra_l2if_update_bond_slave(struct interface *ifp,
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ifindex_t bond_ifindex);
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extern void zebra_vlan_bitmap_compute(struct interface *ifp,
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uint32_t vid_start, uint16_t vid_end);
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extern void zebra_vlan_mbr_re_eval(struct interface *ifp,
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bitfield_t vlan_bitmap);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _ZEBRA_L2_H */
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